Also remove "    " null data for Tag.  Just use zeroes.

To help TSan and be more "correct".

Should fix bots again.

Should fix Windows build again.

It uses constexpr...

Also, include hb-dsalgs.hh from end of hb-pricate.hh

Oops.

Catches compile-errors in them better.

Disable vectorization for now.  To correctly use them, we should
use posix_memalign() to allocate them.  Otherwise, can cause
misaligned access.

https://bugs.chromium.org/p/chromium/issues/detail?id=860184

Makes compiling without HAVE_ROUND on systems that do have it work.

Part of https://github.com/harfbuzz/harfbuzz/issues/630

This was causing problem on systems without visibility when map was used
from both libharfbuzz and libharfbuzz-subset. Sigh.

https://ci.appveyor.com/project/harfbuzz/harfbuzz/build/1.0.1669/job/dey47nmff0770vp3

Some of the build bots, still fail on this.  I suppose mine pass because
I enable C++11...

Anyway, remove these again.

Sigh.

This reverts commit ff92de76.

Revert that and remove ASSERT_POD. Let's see which bots are
unhappy with this configuration...

Null() and Crap() are only places that there's no space before '('...